표 3. | Table 3. 이전 발표된 연구들과의 성능 비교 표 | Comparison with previous works.

Ref.	Freq. (GHz)	Class	Device	Eff. (%)	Coupler	Phase shifter
[6]	0.91	Class-F-1	GaN HEMT	85	External	External
[7]	1.8	Class-F-1	GaN HEMT	77	External	External
[8]	2.4	Class-F	GaN HEMT	69.6	On board	On board
This work	2.45	Class-F-1	GaN HEMT	73.2	On board	On board